diff --git a/README.md b/README.md
index c8dd6c1..56d9b86 100644
--- a/README.md
+++ b/README.md
@@ -5,4 +5,13 @@ The library json by nlomann is used to read json files in this program [GitHub](
 
 You can reuse and modify it by anyway, just give credits and i'll be happy !
 
-Put your struct and load function into bin.cpp and bin.hpp
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+Manual
+======
+
+Put your struct and load function into bin.cpp and bin.hpp and compile it with "make", you can then use the ouputed binary "json2bin_converter" with the json input file and the binary output file which will be (re)created when the command is executed.
+
+Exemple :
+
+```sh
+    json2bin_converter test.json test.bin
+```
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